#!/bin/bash
# Script to migrate rpmdb from /var/lib/rpm to new rpmdb path in /usr

# Copyright (C) 2022 Neal Gompa <ngompa@fedoraproject.org>.
#
# Fedora-License-Identifier: GPLv2+
# SPDX-2.0-License-Identifier: GPL-2.0+
# SPDX-3.0-License-Identifier: GPL-2.0-or-later
#
# This program is free software.
# For more information on the license, see COPYING or
# <https://www.gnu.org/licenses/gpl-2.0.en.html>.
# For more information on free software, see
# <https://www.gnu.org/philosophy/free-sw.en.html>.


set -euo pipefail

# Script to migrate the rpmdb to /usr
rpmdb_path="$(rpm --eval '%_dbpath')"
rpmdb_path_old="/var/lib/rpm"
rpmdb_path_new="${rpmdb_path}"


if [ "${rpmdb_path}" = "${rpmdb_path_old}" ]; then
	echo "The rpmdb path is still in /var, exiting!"
	exit 0
fi

if [ -L "${rpmdb_path_old}" ]; then
	echo "The rpmdb has already been migrated, exiting!"
	rm -v "${rpmdb_path_old}/.migratedb"
	exit 0
fi

rpm --verbose --rebuilddb

rm -rfv ${rpmdb_path_old}

ln -srv ${rpmdb_path_new} ${rpmdb_path_old}
